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I second Matthias' stance - MongoDB does not look like the future-proof
tool for the job, it's not really well suited for time-series data.
I feel that would just be "wasted" work to bring it back, unless it is
really like snapping fingers...
Not to mention supporting it in the long run.
Obviously not me making decisions. :-)

The other part, bringing API back, seems nice as there are ppl using
Ceilometer with Monasca this way.

I am glad to hear that Monasca is finally getting official support as a
publisher in Ceilometer.
This should actually solve the main issue of lack of a reliable publisher -
Monasca already handles
modern persistent time-series databases.

I added [monasca] since we have the topic of Monasca as one of Ceilometer's
new publishers. Feel free to remove.

-yoctozepto

wt., 19 lis 2019 o 20:41 Matthias Runge <mrunge at matthias-runge.de>
napisał(a):

>
>
> On 19/11/2019 11:56, Rong Zhu wrote:
> > I am sorry to the telemetry project happened before, but now current
> > telemetry core team had decided to add ceilometer api and mongodb
> > support and cpu_utils support back. Gnoochi will still support as the
> > backed. All the mentioned database (influxdb, ES....), we would happy
> > everyone to submit patches to support as the database backed in
> ceilometer.
> >
> > I created a storyboard to track ceilometer Ussuri release todo things in
> > [0]. Free free to add things you want to do in Ussuri release.
> >
> > Due to I will have a vacation this week, I can't hold this week's
> > meeting, we can discuss more in the next irc meeting at 5 Dec 2:00 UTC.
> >
> > [0] https://storyboard.openstack.org/#!/board/205
> >
> > Luka Peschke <luka.peschke at objectif-libre.com
> > <mailto:luka.peschke at objectif-libre.com>>于2019年11月19日 周二18:24写道：
>
>
> Hi,
>
> tbh, I am surprised to see the telemetry team trying to roll back to
> something, which is known to cause a lot of performance issues. There
> were good reasons for splitting ceilometer into several components.
>
> There were lots of good ideas and suggestions already shared in this
> thread. My proposal here would be to keep ceilometer as is (as data
> collecting agent) and to write missing glue to digest or send data to a
> time-series database, like InfluxDB or Prometheus (plus many more
> options, not mentioned here).
>
> If I remember correctly, MongoDB was deprecated because of the issues it
> caused and also because it was removed from Linux distributions, since
> there were the licensing issues.
>
> Matthias
>
>
>
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